extrusive rock- is a form of igneous rock that is formed when lava erupts onto the earth's surface
instructive rock- is a form is igneous rock that is formed when magma underground hardens beneath earth's surface
porphyritic texture- is a rock with bigger crystals spread out on the background of a crystal smaller then it
Table of Contents
Section 2 (5-2) Igneous Rocks
Vocabulary
extrusive rock- is a form of igneous rock that is formed when lava erupts onto the earth's surface
instructive rock- is a form is igneous rock that is formed when magma underground hardens beneath earth's surface
porphyritic texture- is a rock with bigger crystals spread out on the background of a crystal smaller then it
Outline
How igneous rocks form
Classifying igneous rocks